Why Do the Letters “IHS” Appear in Catholic Churches?

September 13, 2026: Visitors to Catholic churches often notice the letters IHS on altars, vestments, paintings and devotional objects. This familiar symbol is a Christogram—a monogram representing the name of Jesus Christ.

From the Greek name of Jesus

The letters IHS come from the first three letters of the Greek name of Jesus: IΗΣΟΥΣ (Iēsous). Early Christians commonly abbreviated sacred names in manuscripts and inscriptions. Over time, this abbreviation developed into a recognizable Christian symbol.

IHS therefore points directly to the name of Jesus and reminds Christians that He is at the centre of the Church’s worship and faith.

A symbol of devotion to Jesus

The name of Jesus has an important place in Christian prayer and devotion. The Christogram may appear with a cross, rays of light, or other Christian imagery, emphasizing Christ’s Passion, Resurrection and saving mission.

In later Latin tradition, IHS was sometimes interpreted as Iesus Hominum Salvator, meaning “Jesus, Saviour of Humanity.” This is a devotional interpretation, not the original Greek derivation of the letters.

Where is IHS used?

The symbol may be found on:

• altars and church furnishings;
• vestments and banners;
• paintings and other religious artwork;
• prayer cards, medals and rosaries; and
• devotional objects used in personal prayer.

Its presence does not make an object sacred by itself. Rather, it serves as a visible reminder of Jesus Christ and can direct the minds and hearts of the faithful toward Him.

The Jesuit connection

IHS became especially associated with the Society of Jesus, commonly known as the Jesuits. The Society adopted the Christogram as part of its identity, and its widespread use in Jesuit churches, schools and publications helped make the symbol familiar throughout Catholic life.

The Jesuits popularized IHS, but the symbol itself is older than the Society of Jesus.

A lasting Christian symbol

Whether displayed on a church altar or carried on a devotional object, IHS points to the holy name of Jesus. It connects an ancient Greek abbreviation with the Church’s continuing proclamation that Jesus Christ is Lord and Saviour.

The next time you see IHS, remember its simple message: the name of Jesus stands at the heart of Christian faith, worship and devotion.